fix cron trigger paths

.github/workflows/niv-update.yml

@@ -92,10 +92,14 @@ name: niv-update
   pull_request:
     paths:
     - nix/*
-    - ci/*
+    - default.nix
+    - ./ci/niv-cron.nix
+    - .github/workflows/niv-update.yml
   push:
     paths:
     - nix/*
-    - ci/*
+    - default.nix
+    - ./ci/niv-cron.nix
+    - .github/workflows/niv-update.yml
   schedule:
   - cron: 0 */6 * * *

ci/niv-cron.nix

@@ -1,4 +1,4 @@
-{ lib, channels, ... }:
+{ lib, channels, config, ... }:
 with lib; {
   name = "niv-update";
   ci.gh-actions.enable = true;
@@ -9,7 +9,11 @@ with lib; {
 
   gh-actions = {
     on = let
-      paths = [ "nix/*" "ci/*" ];
+      paths = [
+        "nix/*" # niv and sources.json
+        "default.nix" # sourceCache
+        config.ci.configPath config.ci.gh-actions.path
+      ];
     in {
       push = {
         inherit paths;